<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			/* 组选择器 */
			a,div,p{
				color: #FF0000;
				font-size: 30px;
			}
			li{
				list-style: none;
				
			}
			/* 伪类选择器 */
			li:hover{
				background: #00FFFF;
			}
			
			
			
		</style>
		
	</head>
	<body>
		<a href="">python</<!-- a>
		<div>java</div>
		<p>python0001</p> -->
		<ul>
			<li>菜单1</li>
			<li>菜单2</li>
			<li>菜单3</li>
			<li>菜单4</li>
		</ul>
		
		
		
		
	</body>
</html>
